package base.exa17;

public class Exa06_2 {
    public static void main(String[] args) {
        String str="12hello567bird".replaceAll("[a-zA-a]+","你好");
        System.out.println(str);

        String str1 = "12hello567bird".replace("hello","你好");
        System.out.println(str1);
    }
}
